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Browsing by Subject "barite sagging"

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  • thumbnail.journal.alt
    Item type:Book Chapter, Access status: Open Access ,
    Mikro- i nanomateriały w technologii płuczek wiertniczych na bazie olejowej, stosowanych do wiercenia otworów w warunkach wysokiego ciśnienia i wysokiej temperatury (HPHT)
    (Wydawnictwa AGH, 2024) Jamrozik, Aleksandra; Szczygieł, Andrzej
    Oil-based drilling fluids are primarily used in challenging geological and reservoir conditions, such as high temperatures, high pressures, reactive rock formations, or the influx of mineralized formation water. This publication presents the results of laboratory tests on the rheological properties and stability of oil-based drilling fluid, with micronized barite as the weightening material. To enhance the stability of these drilling fluids, an organophilic nanomaterial – amino-attapulgite, was used. The research demonstrated that the combination of micronized barite and amino-attapulgite in oil-based fluids allows for the modification of their properties across a wide range of densities and low rheological values. The results showed that incorporating organophilic attapulgite and using micronized barite as the weightening agent reduces sedimentation conditions and improving stability drilling fluids.